Description 1/8″ NPT Male/Female Thread with 1/8″ NPT Female Thread These adapters allow you to add an electric oil pressure gauge while still retaining the stock warning light or gauge. The adapters are 2-1/2″ long and fit inline between the engine and the stock oil pressure switch and have a 1/8″-27 NPT port on the side to suit all types of aftermarket applications like Pro-Lites or Turbos etc
